Straight Hairstyles

1.
Fergie

THE LOOK Long and ShinyHOW-TO Section your hair in the center and blow-dry straight with a hair-relaxing balm. After the hair is dry, work in a small amount of styling lotion with your fingers to smooth it out. Straighten the hair with a flat iron and finish with a hair oil for added shine and smoothness.INSIDER TRICK Keep your hair shiny and bright with a weekly dose of color-depositing shampoo. "Using the shampoo just once a week can counteract the effects of sunlight and color-fading," says David John, stylist at the Serge Normant at John Frieda Salon in Los Angeles.BUY ONLINE NOW Silk Oil, Shu Uemura, $28; luxuryparlor.com.

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2.
Jennifer Aniston

THE LOOK Hairline braidHOW-TO L.A.-based stylist Stephanie Pohl says to start by spritzing volumizer on hair and then blow it dry. When dry, braid a small section of hair along the hair line and secure it with a clear elastic or bobby pin. "Spray a few sections with hairspray and wrap in different directions on a one-and-a-half-inch curling iron," says Pohl. "This is a rather large iron that will just bend the ends to create her look."INSIDER TRICK "If the braid is too hard to do, you can just do a twist instead," says Pohl. BUY ONLINE NOW L'Oreal Vive volumizer, $5; at walgreens.com.

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3.
Katie Holmes

THE LOOK Straight diagonally-parted bob HOW-TO "Ask your hairstylist for a wedgy bob full of texture," says stylist Jerome Lordet of N.Y.C.'s Pierre Michel salon. Get this sleek style by running a flat iron through one-inch sections of hair and finishing with smoothing serum on the ends to keep them smooth.INSIDER TRICK The front pieces should be chin-length and the back should have layers cut into it. "You get the wedge by layering the hair from shorter to longer at the nape of the neck," says Lordet.BUY ONLINE NOW Caviar Polishing Serum, Alterna, $26; beauty.com.

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4.
Kate Bosworth

THE LOOK Half-upHOW-TO Add volumizing spray to damp hair and create a disheveled center part, says stylist Rodney Cutler. "Using your hands, grab two-inch sections of hair and twist," he says. "Blow-dry while holidng the twist very taut. When the hair is dry, release it to create the sexy disheveled texture. Then loosely pull back the sides and secure in the back with bobby pins." INSIDER TRICK If your roots aren't perfectly touched up like Bosworth's, try a more jagged part part-it helps to conceal undone roots.

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5.
Angelina Jolie

THE LOOK Loose, natural hairHOW-TO David Babaii created Jolie’s look by blow-drying the hair with a large round brush. When the whole head was dry, he took large sections of hair and twisted each around the brush and spritzed with his Bohemian Beach Spray (leaving the brush wrapped). Using the dryer's low speed, he gave each section a blast of warm air. After hair cooled, the section was gently unwrapped from the brush. INSIDER TRICK Babaii finished the look by scrunching the beach spray in for a little extra volume and lift. BUY ONLINE NOW David Babaii Bohemian Beach Spray, $12; at db4wildaid.com.

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6.
Taylor Momsen

THE LOOK Choppy shagHOW-TO Beverly Hills salon owner Jim Wayne says to use the “flat rapping” technique to get this look, which is blow-drying the hair messily around the head to get the piecey shagginess. Finish by lightly applying smoothing serum to the hair. INSIDER TRICK “This works with a variety of lengths, from chin-length to past the shoulders,” says Wayne. “But it doesn’t work well with really curly or thick hair.”

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7.
Eve

THE LOOK Asymmetrical rocker ‘doHOW-TO Part hair on the side opposite of how you usually wear it (to create height on the top of the head). Slick back the part-side side with hair gel. Tease the area on top of the head under the rest of the hair and secure with hairspray. Celebrity stylist Jim Wayne says this style works best on hair that’s cut with lots of layers. INSIDER TRICK Skip high-top looks like this if you have a long face shape-it's best on oval or round-shape faces.BUY ONLINE NOW Labella hold gel, $2; at target.com.

9.
Claire Danes

THE LOOK Straight with uneven partHOW-TO "Start by using Phytodefrisant on wet hair from the middle to the end of the hair," says stylist Helena Faccenda. "Use a medium-to-large round brush and a professional blow dryer to straighten hair." Finish with a lightweight shine spray for extra luster.INSIDER TRICK Faccenda says this look works well on wider face shapes by giving the face a nice long frame.BUY ONLINE NOW Phyto Phytodefrisant relaxing balm, $26; bergdorfgoodman.com.

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10.
Reese Witherspoon

THE LOOK Unfussy half-up hairHOW-TO "Start with clean, damp hair so hair has movement and high shine," says Bumble and bumble stylist Michele Fiona. Spritz hair with prep lotion to create a workable hold, then blow-dry hair using a large round brush, curling the ends slightly under. "Then take two sections of hair by the forehead, twist gently and secure with a pin the same color as hair," says Fiona. "Finish with a light coat of medium-hold hairspray." INSIDER TRICK "Don't completely saturate hair with product, as this will discourage body and fullness," says Fiona. "This look is all about flirty movement."BUY ONLINE NOW Prep, Bumble and bumble, $21; fredsegalbeauty.com.

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11.
Anne Hathaway

THE LOOK Long, full bobHOW-TO Apply a styling cream to freshly-washed hair. “Dry hair with a large paddle brush, brushing it all forward and under, turning every piece under with a little root lift,” says stylist Jim Wayne. “Once hair is dry and turned towards the face, take a little dab of styling cream and run your hands through your hair, tousling to make it nice and messy-it’s disheveled elegance.” INSIDER TRICK “This style works best on medium-to-thick hair,” says Wayne . BUY ONLINE NOW Defining Invisible Styling Cream, Davines, $19; folica.com.

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12.
Jennifer Aniston

THE LOOK Long straight layers with a center partHOW-TO Blow-dry with a round brush to give roots volume. Flat iron layered sections and smooth ends with a smoothing serum. INSIDER TRICK When flat ironing, separate sections of hair by first clipping the top of the hair above the ear. Then iron the section below, put that in a loose clip and iron the top section.

14.
Rebecca Romijn

THE LOOK Half up with movementHOW-TO Stylist Jamie Bakos recommends the following steps for this style: Spray in volumizer on the roots when wet. Blow dry hair with a round brush, bending the ends of the hair in an outwards motion. Choose a messy part, then loosely pull sides of the hair back and secure it with bobby pins or a clip.INSIDER TRICK Lightly comb roots on the crown before pulling hair back for a little sexy volume. BUY ONLINE NOW Phyto Phytovolume Actif Volumizer Spray; $28; beautyexclusive.com.

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15.
Ashlee Simpson

THE LOOK Edgy long layers HOW-TO Start by spray volumizing root lift to damp hair, says stylist Jamie Bakos. Blow dry hair upside down until completely dry. Using a flat iron, section off segments of hair and smooth out the ends. Add Osmo clay to the ends to make it edgy. INSIDER TRICK Blow dry bangs to the opposite side from how it is usually styled. BUY ONLINE NOW Osmo Essence Clay Wax; $14.79; sleekhair.com.

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16.
Julia Stiles

THE LOOK Long layers HOW-TO Apply one pump of Kerastase Serum Oleo-Relax to wet hair. Blow dry hair with a round brush from root to end. Use a flat iron to smooth ends. INSIDER TRICK When selecting a part, use the highest point of the eyebrow and go up from there. BUY ONLINE NOW Kerastase Serum Oleo-Relax; $34; fredsegalbeauty.com.com.

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17.
Rachel Bilson

THE LOOK Low ponytail HOW-TO "Start with hair powder on dry hair," says stylist Wendy Bond. Add a little messy texture by blow-drying hair. Gather hair into a low ponytail at the base of the neck and allow face-framing layers to fall out. Finish with a light coating of hairspray. INSIDER TRICK By starting with hair powder, you enhance the texture of the hair. BUY ONLINE NOW Hair powder, Bumble & Bumble, $41; fredsegalbeauty.com.

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18.
Tyra Banks

THE LOOK Straight with deep side part HOW-TO Star with a smoothing balm on wet hair, advises Wendy Bond of the Oscar Bond Salon in N.Y.C. Blow-dry with a large round brush to get lift at the roots. Finish by running a flat iron over the hair and a pea-size amount of pomade, "from the middle to the ends of the hair," says Bond. INSIDER TRICK Avoid applying smoothing products too close to the root, as it can look too flat and greasy. BUY ONLINE NOW Strait Line Smoother Straightening Balm, L'Anza, $13.50; beauty-mart.com.

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19.
Elisha Cuthbert

THE LOOK Long pixie cutHOW-TO Start with a volumizing spray on wet hair, then blow-dry from back to front using your fingers to rake the hair, says stylist Mario Russo. Smooth ends with a round brush when hair is almost dry. INSIDER TRICK This style looks great when it's more polished, or a bit messy, says Russo. "A styling wax will give you a piecier look," he says, if you opt for a funkier 'do.BUY ONLINE NOW Styling Wax, Bumble & Bumble, $20; amazon.com.

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20.
Eva Longoria Parker

THE LOOK Upside-down twisted bun HOW-TO Start by teasing the entire head and creating a low part on one side, says stylist Jerome Lordet of N.Y.C.'s Pierre Michel salon. Use a flat brush to smooth the sides of the hair. Pull back the left side, keeping the panel low, and secure it with a pin. Then pull the right side around, over the pinned left panel and pin that piece. Pick both sides up together and twist into a bun or twist. INSIDER TRICK "Keep it loose," says Lordet. "Don't overuse hairspray." Try on straight hair now!

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21.
Carrie Underwood

THE LOOK Half-up straight hairHOW-TO Blow-dry hair with a large, round brush. "Tease a triangular section of hair from the front of the head and tease the base," says Nelson Chan of Nelson J Salon in Beverly Hills. "Hold the section in a little ponytail, twist and pin it."INSIDER TRICK You can use a clear elastic instead of a pin to secure the hair.BUY ONLINE NOW Snag-Free Hair Elastics, Intuition Blax, $3.50; beautysak.com.

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22.
Kristen Bell

THE LOOK Long and straight with a headband HOW-TO Add a little volumizer to wet hair to give hair fullness, then blow-dry with a medium-size round brush. Push hair away from the face with a skinny headband.INSIDER TRICK "Make sure that the headband is not too thick," says stylist Jerome Lordet. "You want to keep it elegant versus a schoolgirl look." BUY ONLINE NOW Skinny leopard headband, J.Crew, $14; jcrew.com.

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23.
Jessica Alba

THE LOOK Long sleek layers HOW-TO "To get this kind of movement, you want your stylist to cut long layers that start just below the chin," says stylist Michael St. Germain. You want to ask for concave layers, which are more smooth than choppy layers. To style, add an anti-frizz product to your hair as well as something to add body, like thickening spray. Blow-dry straight and finish with a one-inch flat iron (St. Germain recommends the Chi).INSIDER TRICK If you have thick, coarse hair, finish with smoothing serum.BUY ONLINE NOW Biosilk Silk Therapy Serum, $17; factorybeautystore.com.

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24.
Linda Evangelista

THE LOOK Graduated a-line bob HOW-TO Stylist Guy Riggio recommends asking your stylist for triangular layers, "which give volume and lift in the back and come to a nice point in the front by the chin." When styling, use Aveda's gloss product, says Riggio. "Bobs look best with shine."INSIDER TRICK "If you have coarse, wavy, or thick hair, flat iron this style to get the sharp, clean look," says Riggio.BUY ONLINE NOW Aveda Brilliant Emollient Finishing Gloss, $23; aveda.com.

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25.
Rebecca Romijn

THE LOOK Smooth with a side braidHOW-TO Spritz wet hair with volumizing spray. Blow-dry with a round brush, then part dry hair on the side. Hold hair in a low ponytail (do not secure with elastic, though), and begin braiding, pulling hair to the front and secure with a small-size rubber band.INSIDER TRICK When braiding, avoid flat hair by not pulling hair too tightly.BUY ONLINE NOW Large, round boar bristle brush by Julien Farel, $50; www.julienfarel.com .

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26.
Rebecca Gayheart

THE LOOK Straight low ponytail HOW-TO With hair that you've blown straight or flat ironed, tease the crown and lightly mist with flexible hold hair-spray. Create a center part and pull hair back and secure behind the ear with a clear hair band. INSIDER TRICK "This style works best with hair that hasn't been recently washed," says stylist Joaquin Hortal. For even more texture, apply a dry shampoo to roots and massage in.BUY ONLINE NOW Rene Furterer Naturia Dry Shampoo, $23; www.dermstore.com.

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27.
Vanessa Minnillo

THE LOOK Long, sleek and straight with side partHOW-TO Use a straightening serum on wet hair, then blow dry with a large round brush. Finish with a light coating of hairspray.INSIDER TRICK Stylist Juan Carlos Maciques says when applying hairspray, mist it, moving the can continuously. "You want the hair to move and not be an entity all its own."BUY ONLINE NOW Fekkai COIFF Sheer Hold Hairspray, $23; drugstore.com.

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28.
Kate Hudson

THE LOOK Chin-length layersHOW-TO Have your hairdresser cut layers starting at the chin. Blow-dry with a flat brush (one with an oval head) and as you brush, roll the brush in the direction of the slope of the face. Secure with light hairspray. INSIDER TRICK After applying spray, run your hands through it and shake the head so there's mobility and it won't look stiff, says stylist Eva Scrivo. BUY ONLINE NOW Aveda Air Control Hair Spray, $13;
aveda.com.

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29.
Ashanti

THE LOOK Face-framing layersHOW-TO This look works best if your hair is relaxed or easy to straighten. Wash with a smoothing shampoo and conditioner. Use a large round brush to dry hair. INSIDER TRICK "Layers are great for thick, dense hair," says stylist River Lloyd.

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30.
Eva Longoria Parker

THE LOOK Long feathered layersHOW-TO Use a straightening balm on wet hair, then blow-dry with a paddle brush that you twist slightly when you get to the ends, adding a subtle curl. INSIDER TRICK "If you're petite like Eva, you don't want your hair to be too long and straight," says Goli Poursaid of Salon Montage in Laguna, Calif. "If you're tall, you can pull off longer hair more easily." BUY ONLINE NOW The Body Shop Macadamia Straightening Balm, $10;
bodyshop.com.

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31.
Rachel McAdams

THE LOOK Long, full layersHOW-TO Apply shine gel to wet hair and allow it to air-dry. Once it's almost dry, use a two-inch round brush to smooth it out and finish with a blow-dryer on the cold setting. Create a jagged part and back comb both sides for volume. INSIDER TRICK If you have a square face shape, avoid this look.BUY ONLINE NOW Citre Shine Style amp Shine Gel, $3; amazon.com.

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32.
Madonna

THE LOOK Flipped layers
HOW-TO Get the wave in the bangs by twisting the wrist outward as you roll a round brush through the hair. Karla Medeiros of Miami's Me Day Spa recommends the small T3 flat iron to twist the side layers into a wave. Secure with hairspray.
INSIDER TRICK Layers should be cut starting at the bottom of the ear.
BUY ONLINE NOW T3 Tourmaline Professional Flat Iron with Rounded Plates, $26.40; sephora.com.

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33.
Katie Holmes

THE LOOK Stick-straight and longHOW-TO Wash with anti-frizz shampoo and conditioner. Blow-dry hair and use a flat iron on one-inch sections of hair. Finish with a smoothing serum. INSIDER TRICK To save time, wash your hair at night, skip blow-drying, then flat iron in the morning. BUY ONLINE NOW Davines LOVE Smoothing Shampoo, $15; folica.com and Conditioner, $17.50; folica.com.

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34.
Cameron Diaz

THE LOOK Multiple layers with sideswept bangsHOW-TO Spritz thickening spray onto wet hair and dry with a paddle brush, pulling the bangs from the part toward the ear. Lightly smooth over hair with a shine serum. INSIDER TIP "Typically layers look best in long hair," says stylist Eva Scrivo. "They help add definition to the bone structure," especially with a round face like Diaz's.

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Pacificccoast

35.
America Ferrera

THE LOOK Shoulder-length hair with volumeHOW-TO Start by applying a volumizing mousse to wet hair. Blow-dry hair with a round brush and smooth ends with a straightening serum. INSIDER TRICK Stylist Eva Scrivo says to get ample volume, style with a large round brush.

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36.
Rachel Bilson

THE LOOK Long layers with volumeHOW-TO Blow-dry hair with a three-inch round brush and then back-comb at the crown. Finish with a middle part. INSIDER TRICK For subtle waves like Rachel's, curl the ends with a two-inch iron.

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37.
Gwyneth Paltrow

THE LOOK Super-sleek and straightHOW-TO Smooth a straightening balm on wet hair and blow-dry with a flat brush. When hair is nearly dry, switch setting to cold to lock in the shine. Finish by flat ironing. INSIDER TRICK By switching to the cold setting, you add shine and smoothness, says stylist Eva Scrivo.

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38.
Jessica Alba

THE LOOK Long and full with sideswept bangs
HOW-TO Apply a light leave-in conditioner onto wet hair, then blow-dry with a two-inch round brush. When dry, put hair in large-barrel curlers and let set while you do your makeup. Remove curlers and lightly work a little shine serum all over the hair with your hands.
INSIDER TRICK When applying the shine serum, apply it to your palms and then softly brush them over the hair to maintain the shape.
BUY ONLINE NOW Alterna Classic Spray Leave In Conditioner, $14.10; goddess-within.com.

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39.
Jessica Simpson

THE LOOK Shoulder-Length,No Part HOW-TO Get volume and subtle shape by blow-drying with a large round brush and pointing the dryer at the face to create a no-part look like Jessica's. INSIDER TRICK Finish with hairspray to prevent the look from falling (and therefore creating a part). BUY ONLINE NOW Elnett Hairspray, $13 - $32; boydsnyc.com.

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40.
Sandra Bullock

THE LOOK Shoulder-length with center partHOW-TO Add volumizing mousse to the roots and let hair air-dry. Once dry, part hair in the middle, tease it at the crown and smooth the ends with a serum. INSIDER TRICK A part that only goes part way back is less severe than a full-length one. BUY ONLINE NOW Kerastase Resistance Volumactive, $45; amazon.com.

Fergie

THE LOOK Long and ShinyHOW-TO Section your hair in the center and blow-dry straight with a hair-relaxing balm. After the hair is dry, work in a small amount of styling lotion with your fingers to smooth it out. Straighten the hair with a flat iron and finish with a hair oil for added shine and smoothness.INSIDER TRICK Keep your hair shiny and bright with a weekly dose of color-depositing shampoo. "Using the shampoo just once a week can counteract the effects of sunlight and color-fading," says David John, stylist at the Serge Normant at John Frieda Salon in Los Angeles.BUY ONLINE NOW Silk Oil, Shu Uemura, $28; luxuryparlor.com.